Scraper attachment for disk harrows



March 1954 M. T. BABINCHAK SCRAPER ATTACHMENT FOR DISK HARROWS 2 Sheets-Sheet 1 Filed May 29, 1950 l INVENTOR.

ICHHEL HB/A/cHfi/r 23 "I, Z2 M HTTO/PNEY March 30, 1954 T. BABINCHAK SCRAPER ATTACHMENT FOR DISK HARROWS 2 Sheets-Sheet 2 Filed May 29, 1950 INVENTOR Bl/VCHHK BY MICHHEL BI? FI'TTOPNFY Patented Mar. 30, 1954 STATES PATENT OFFICE SGRAPER ATTACHMENT. FOR DISK HARROWS' Michael-STuBabinchak, Warren, Ohio Application May 29"; 1950, SerialNo. 164,913

My invention; relates to: narrows, particularly to; apparatus: adapted to Q be". attached. to a: con.-- ventional .'disc:harrow', .andethe. principal obj ect o-f; myw'invention is to provide new. andimprovedlap' paratuss of such character:

Conventional disc barrows; are used". to; break:

upztherground and prepare it for planting; However, ,the: ground isfrequently'broken: inter-lumps o1v a size.- too large to; facilitate planting: opera-.- tions ands-further: the broken: ground; is i frequently 'thrown upv in1uneven relation Thus, before In the drawings-accompanying; this specification/andforminga part of thisapplication; there is shown, for purposes of illustration an em? bodiment which my invention may assume, andrinthese drawings:

Figure 1 is. aside elevationalview of} a: disc harrow embodyingmy. invention, the tractor. for;

drawing the harrow beingpartially shown, and certain/parts being shown. in dots-dash. lines in an. alternate position,.

Figure 2. is: a perspective view of. the lumpreducing and groundl leveling attachment,

Figure 3 is a top plan. view of. theapparatus shown in Figure Land Figured is an enlarged, fragmentary sectional view of a detail.

Referring to the drawings, the embodimentof.

the invention here n disclosed comprises a disc,

harrow I U, herein shown asdrawnby atractor T whichxnay be of any commercially, available'type The disc harrow ll! also may be of any suitable commercial design, and the type hereindis losed comprises a frame 5'! formed by fabricated metallic members ani'inolu in a pair of.longitudinally extending angle. pieces l2, eachhaving-one end pivotally connected to a portion, of the tractor, asv at 3. Transvereely extending tubular members i i are connected to the angle pieces l2; as-by welding; and the discs ii are carried." by strueture supported by the tubulanmemhers M in: well known manner. 1

After use. of my a'ciaims-i. (01. 55--23) The harrowherein" disclosed may be raised from operative position withrespect' to* the ground; and for this purpose a bracket structure I 6 is secured to and extends upwardly from'- the frame- H and is pivot'allyconnected toone end of a link [1; the other end'beingconnectedto' motormeans (not shown), such as a hydraulic cylinder.

A lump-reducing and groundleveling attach ment 1 8- is shiftablycarried bythe-frame" H so that it may be readilyshiftecl to operative-on inoperative positions. In-the presently disclosed embodiment the attachment comprisesan el'on gated member i9, herein-shown-as of angle crosssection, one leg 20 being adapted toibe disposedi generally flat-wise with: respect to; the ground with its leading edge--21 behind the rear-most row of discs l5; The other-leg ofthe memben 19'' provides a backeboard- 22 which preventslcose earth from freely sliding overthe member l9:

Extending downwardly fromthe leg 20- is-- a series of? ground-engaging teeth whicharehere shown in the formof a:plurality of'longitudinally. extending spaced-apart plates-23; the plates: progressively increasing in depth from the lead ing edge. 2 I of the leg 2 0 to its trailing edge.

Arm:.means 24 arelprovided 'for connecting the lump-reducingz and ground leveling meanszto the framaand inthepresently disclosed embodimentt a pair of. tubular armsa25 aredisclosed; each arrre being of angular formation to: provide a short: leg portion ZBLandaa longer leg: portion 21; suchi portions; being preferablyrjoinedzby acurved porz tion 28. The extremity of each leg portionltsis; provided with abearing'29, and-the extremity: of each leg portion-21 is. secured toathe member l9; as by means of welding. Pairslofspaced-aparti ears 3!] are Welded to the upper surface of the; angle pieces [2, each pair..'of:ears:being'adapted to receiver a respective: bearing: 29;. and a pivot; pin 3I- passesthrough the:ears. andbearing'so': that the arms 25 are pivotally; connected; tolthei frame ll.

In Figure 1 the arms 25zare shown inf-ullrlin in position to disposev the lumprreducing; and; ground leveling device: adjacent to the ground; and the dot-dash lineszshow the arms" 2 5: swung about the pivots3l to position whereinalportiom of. each arm spaced; from the pivot rests on the top surface of a respective angle piece andthus holds the lump-reducing and ground leveling device in inoperative position.

Means" are provided for releasablyholding the arms 25* in either position; and in the embodiment herein disclosed such means" comprises a pair of telescoping tubes 32 and 33, the tube 32 being pivotally connected to a pair of ears 34 welded to the rear-most tubular member I4, and the tube 33 being pivotally connected to a pair of ears 35 welded to the leg 20.

Latch means are provided to control telescoping action of the tubes 32 and 33, and in the presently disclosed embodiment a lever 33 is pivotally carried by the tube 32, the leg 31 of the lever pivotally carrying a plunger 38 which is adaptedto fit into either one of two apertures 33 formed in the wall of the tube 33. A pair of reinforcing plugs 43 may be welded within the tube 33, each formed with a recess 41 in align ment with a respective aperture 39. The lever 33 may be urged to position wherein the plunger 38 is retained within either one of the aperturerecess 33-4i in any suitable manner, such as by means of a torsion spring 32.

In the position of parts shown in Figure 1, telescoping tubes 32, 33 are held in extended relation by the latch means to form a rigid strut which firmly holds the lump-reducing and ground leveling device in proper relation with respect to the ground. To swing the arms to dot-dash position, it is only necessary to move the lever 33 in a direction to releasethe plunger 38, whereupon the tubes 32, 33 may telescope to retracted relation as the arms 25 are swung to dot-dash position and, when such position is reached, the plunger 38 will be urged to seat in the other aperture-recess 39-4! so as to firmly hold the arms in such position.

The tube 32 may be formed in two sections joined by a coupling 50 shown in dotted lines in Figure 3. The coupling 50 may have left and right hand thread connection with the sections of the tube 32 so as to act in the manner of a turn-buckle to effect lengthening or shortening of the tube 32. Thus, adjustment is provided whereby the attachment i8 may be disposed a selected distance with respect to the ground line.

In operation, as the disc harrow I3 is drawn over the ground, assuming that the frame H is in its lower position, the ground will be turned up. The elongated member 23 follows the rearmost discs I5 and acts on the plowed ground to break up lumps and level the ground. The progressive depth of the longitudinal plates 23 provides for effective lump-breaking action, since the shorter leg is first to engage and break a lump, and the smaller lumps resulting from such action are further reduced by action of the other plates 23.

It will be apparent that my attachment is economical to manufacture and may be easily attached to any harrow of commercial construction. 1

In view of the foregoing, it will be apparent to those skilled in the art that I have accomplished at least the principal object of my invention, and it will also be apparent to those skilled in the art that the embodiment herein described may be variously changed and modified, without departing from the spirit of the invention, and that the invention is capable of uses and has advantages not herein specifically described; hence it will be appreciated that the herein disclosed embodiment is illustrative only, and that my invention is not limited thereto.

I claim:

1. A disc harrow, comprising: a frame; ground leveling means adapted to extend cross-wise of the line of travel of said harrow and comprising an elongated member adapted to be disposed flat-wise to the ground and a series of longitudinally extending spaced-apart teeth extending downwardly from said member and increasing in depth from the leading to the trailing edge of said member; arm means for connecting said ground leveling means to said frame, comprising a plurality of tubular arms, each of angular formation and each having one end connected to said ground leveling means and its other end pivotally carried from a top surface of said frame, whereby said ground leveling means may be swung from operative position adjacent to the ground to inoperative position wherein said arms are swung to rest on said top surface; telescoping means pivotally connected to said frame and to said ground leveling means; and latch means for controlling movement of said telescoping means, said latch means releasably locking said ground leveling means in operative and inoperative positions.

2. The construction as specified in claim 1, and further including means for adjusting said elongated member toward and away from the ground when said ground leveling means is in operative position to adjust for depth of ground leveling by said elongated member.

3. A ground leveling attachment for a harrow including a rigid frame pivotally mounted on the rear of a tractor chassis and disc gangs carried by said frame to extend transversely of said tractor, the improvement comprising a ground leveling device carried by said frame in the rear of said gangs to break up lumps of ground turned up by said disc gangs and also to level the broken ground, said device comprising a sub-frame pivotally mounted on said harrow frame and including a rigid elongated transverse bar member engageable with the ground, said bar member being movable toward and away from the ground by pivotal movement of said sub-frame to adjust the depth of ground leveling by said bar, and strut means for rigidly holding said sub-frame in selected ground leveling position, comprising a pair of members, one pivoted to said harrow frame and the other pivoted to said sub-frame,

said members being connected for extensible and retractable adjustment relative to each other and including means for holding said members in selected adjustment.

4. A ground leveling attachment for a harrow including a rigid frame pivotally mounted on the rear of a tractor chassis and disc gangs carried by said frame to extend transversely of said tractor, the improvement comprising a ground leveling device carried by said frame in the rear of said gangs to break up lumps of ground turned up by said disc gangs and also to level the broken ground, said device comprising a sub-frame pivotally mounted on said harrow frame and including a rigid elongated transverse bar member engageable with the ground, said sub-frame in-,- cluding angularly disposed arm portions and being swingable from an operative position wherein said transverse bar member is positioned adjacent to the ground to an inoperative position wherein said bar is swung clear of the ground and disposed over said harrow frame, at least one of said angularly disposed arm portions of said sub-frame resting against an upper surface of said harrow frame to support the sub-frame in inoperative position, and means for rigidly holding said sub-frame in selected ground leveling distance from the ground when said sub-frame is in operative position to adjust the depth of ground leveling by said bar.

5. The construction as specified in claim 4, and Number further including latch means for releasably 1,241,775 locking said ground leveling device in operative 1,480,996 and inoperative positions. 2,440,550

MICHAEL T. BABINCI-IAK. 5

References Cited in the file of this patent Number UNITED STATES PATENTS iggggg Number Name Date 10 620:648

869,660 Schultz Oct. 29, 1907 954,759 Naylor Apr. 12, 1910 Name Date Shemwell Oct. 2, 1917 Coppinger Jan. 15, 1924 Martin Apr. 27, 1948 FOREIGN PATENTS Country Date Australia Apr. 14, 1937 Germany Dec. 1, 1925 Great Britain Mar. 28, 1949 

